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• Overview – The Quad Artera Stereo Power Amplifier is a fully balanced power amplifier from British manufacturer Quad, built around the company’s patented Current Dumping technology first demonstrated in the classic Quad 405.
• Key Technology – Current Dumping combines a Class A low-power stage for musical finesse with a Class B current-dumping section for grip and control, joined through a precision bridge network to give Class A linearity from a Class AB design.
• Performance – The Absolute Sound found the amplifier flat to within a fraction of a decibel across most of the audible band, describing it as a very fine amplifier with just a feathery touch of Quad’s classic current-dumping character.
• Specs – The Quad Artera Stereo Power Amplifier delivers 140W per channel into 8Ω (
Compared with the obvious alternative of a new entry-level power amp, S$1,500 sits a bit above the local median of S$1,172 but well below the S$1,897 75th percentile, so this looks like a fair-to-strong buy rather than a stretch. At that level, the asking price is reasonable for a current-era Quad solid-state stereo amp and not one I’d pass over on price alone.
The appeal here is clean, controlled amplification with the kind of smooth, unforced presentation Quad is known for, making it a sensible match for revealing speakers and systems that need grip without glare. In like-new condition, the upside is simple: less wear risk, likely better resale, and a straightforward, low-drama way into a well-regarded amp if the rest of the system is already sorted.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Quad, the venerable British hi-fi brand, traces its origins to 1936 in London, when engineer Peter J. Walker founded S.P. Fidelity Sound Systems, soon renamed the Acoustical Manufacturing Company. Relocating to Huntingdon in 1941 after wartime bombing, the firm shifted from public address gear to domestic audio amid post-war demand for superior sound reproduction. Walker's pioneering ethos—prioritizing "the closest approach to the original sound"—defined Quad from its early QA12 amplifiers, adopted by the BBC, to the iconic Quad I of 1953.
The brand excels in amplifiers and electrostatic loudspeakers, revolutionizing both categories. The Quad II power amplifier of 1953 introduced cathode coupling for vanishingly low distortion, while the 1956 ESL 57 delivered the world's first full-range electrostatic speaker, employing a massless film diaphragm for unparalleled transparency and transient speed. Quad advanced into solid-state with the 1967 303 and transistor designs featuring innovative "Triples" output stages, later expanding to integrated amps like the 99 series, moving-coil speakers, and modern electrostatic models such as the ESL 988 and 989.
Today, under the International Audio Group since 1997, Quad holds a prestigious position in the high-end market, revered by audiophiles for its unyielding pursuit of accuracy over trends. Its heritage components command vintage collector status, yet contemporary offerings maintain a niche boutique appeal among discerning buyers seeking refined, distortion-free reproduction that honors Walker's legacy.
See all Quad listings on RADAR.
